Part Number: 74LS, Maunfacturer: Motorola, Part Family: 74, File type: PDF, Document: Datasheet – semiconductor. These 8-bit shift registers feature gated serial inputs and an asynchronous clear. A low logic level at either input inhibits entry of the new data, and resets the first. It has 2N states where ‘N’ is the number of flip-flops. So here is how to make a Johnson counter using IC 74LS Here are some of the features of IC

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This 8-bit shift register features gated serial inputs and an. The gated serial inputs A and B permit complete control over incoming data as a low at either or both input s inhibits entry of the new data and resets the first flip flop to the low level at the next clock pulse.


A high level input enables the other input which will then determine the state of the first flip-flop. Data at the serial inputs may be changed while the clock is high or low, but only information meeting the setup requirements will be entered clocking occurs or the low-to-high level transition of the clock input. All inputs are diode- clamped to minimize transmission-line effects.

Fully Buffered Clock and Serial Inputs. Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions.

High Level Input Voltage. Low Level Input Voltage. High Level Output Current. Low Level Output Current. Setup Time, A1 or A2 to Clock.

74LS – Integrated Circuits > 74 Series – Electronic Component

Hold Time, Clock to A1 or A2. High Level Output Voltage. Low Level Output Voltage.

High Level Input Current. Low Level Input Current.

74LS164 – 8-Bit Shift Register Ser In/Para Out

Output Short Circuit Current. Not more than one output should be shorted at a time, and duration should jc exceed one second. Propagation Delay Time, Clock to Q. Propagation Delay Time, Reset to Q. All diodes are 1N or 1N Search field Part name Part description.

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